
The MOOSE OFFROAD HARD - PARTS rear sprocket (manufacturer reference 1210-251-52-11X) is aimed at enduro and motocross riders looking for a robust component without unnecessarily adding weight to the transmission. Designed as a hybrid solution, it combines a 7075-T6 aluminium inner carrier with a reinforced steel outer ring: weight savings at the centre and increased durability on the teeth exposed to impacts and wear.
The double ring design offers an interesting compromise for off-road riding: the 7075-T6 alloy reduces the rotating mass around the hub, while the steel ring takes over on the teeth for better resistance against stones and the chain. This sprocket is suitable for Yamaha YZ models (including YZ 450 F Monster Energy Racing Edition 2021, YZ 450 F 2021, and YZ 125 2021), as well as other bikes using the 520 pitch and 52 teeth configuration.
Easy installation, polished silver finish, and tooth profile designed to shed mud and debris: this sprocket is made for demanding off-road sessions without making unverified technical promises.